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Math Help - Find the sec theta of (-2, -1) It's not -1/2??

  1. #1
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    Find the sec theta of (-2, -1) It's not -1/2??

    (-2, -1) Find sec theta. At first I thouht the answer was just -1/2 because x is cosine so you just flip it over for secant. But my teacher said I was wrong. What is the answer??
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  2. #2
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    Re: Find the sec theta of (-2, -1) It's not -1/2??

    Quote Originally Posted by avatartiger2 View Post
    (-2, -1) Find sec theta. At first I thouht the answer was just -1/2 because x is cosine so you just flip it over for secant. But my teacher said I was wrong. What is the answer??
    What is \theta~?. You failed to tell us anything about how the angle is formed.

    We know that (-2,-1)\in III then what?
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    Re: Find the sec theta of (-2, -1) It's not -1/2??

    I think the angle is formed by a right triangle. I think soh cah toa has to be used to find the answer..maybe.
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